allyl O-methyl-N-(((3R)-2-(((3S)-2-(D-valyl)hexahydropyridazin-3-yl)carbonyl)hexahydropyridazin-3-yl)carbonyl)-L-serinate 、
(2S,3aR,8aS)-1-((2R,3S)-2-((tert-butoxycarbonyl)amino)-3-((tert-butyl(dimethyl)silyl)oxy)butanoyl)-6-chloro-3a-hydroxy-5-iodo-1,2,3,3a,8,8a-hexahydropyrrolo[2,3-b]indole-2-carboxylic acid 在
N,N-二异丙基乙胺 、 ((3H-[1,2,3]triazolo[4,5-b]pyridin-3-yl)oxy)tri(pyrrolidin-1-yl)phosphonium hexafluorophosphate(V) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 16.0h,
以0.24 g的产率得到allyl (2S)-2-((((3R)-2-(((3S)-2-((2R)-2-((((2S,3aR,8aS)-1-((2R,3S)-2-((tert-butoxycarbonyl)amino)-3-((tert-butyl(dimethyl)silyl)oxy)butanoyl)-6-chloro-3a-hydroxy-5-iodo-1,2,3,3a,8,8a-hexahydropyrrolo[2,3-b]indol-2-yl)carbonyl)amino)-3-methylbutanoyl)hexahydropyridazin-3-yl)carbonyl)hexahydropyridazin-3-yl)carbonyl)amino)-3-methoxypropanoate